iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ALSA: hda - Disable IDT eapd_switch if there are no internal speakers

Browse Source 
If there are no internal speakers, we should not turn the eapd switch
off, because it might be necessary to keep high for Headphone.

BugLink: https://bugs.launchpad.net/bugs/1155016
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-03-14 15:28:29 +01:00 committed by Takashi Iwai
parent b5f82b1044
commit 303985f810
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sound/pci/hda/patch_sigmatel.c
View File

@ -815,6 +815,29 @@ static int find_mute_led_cfg(struct hda_codec *codec, int default_polarity)
return 0; return 0;
} }
/* check whether a built-in speaker is included in parsed pins */
static bool has_builtin_speaker(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
hda_nid_t *nid_pin;
int nids, i;
if (spec->gen.autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT) {
nid_pin = spec->gen.autocfg.line_out_pins;
nids = spec->gen.autocfg.line_outs;
} else {
nid_pin = spec->gen.autocfg.speaker_pins;
nids = spec->gen.autocfg.speaker_outs;
}
for (i = 0; i < nids; i++) {
unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid_pin[i]);
if (snd_hda_get_input_pin_attr(def_conf) == INPUT_PIN_ATTR_INT)
return true;
}
return false;
}
/* /*
* PC beep controls * PC beep controls
*/ */
@ -3890,6 +3913,12 @@ static int patch_stac92hd73xx(struct hda_codec *codec)
return err; return err;
} }
/* Don't GPIO-mute speakers if there are no internal speakers, because
* the GPIO might be necessary for Headphone
*/
if (spec->eapd_switch && !has_builtin_speaker(codec))
spec->eapd_switch = 0;
codec->proc_widget_hook = stac92hd7x_proc_hook; codec->proc_widget_hook = stac92hd7x_proc_hook;
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE); snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);